dude, i too know it as CaCO3.
And the other formula, whats dat ?
Caliche is CaCO3 naa ???
but it is given that it is NaNO3-NaNIO3
help
thats the answer given in book....i found it today .....
infact among all four options CaCO3 was nowhere to be found...[2]
Dont depend on Arihant it is better to verify the concepts after studying from Arihant,it was more or like a revision.